EP 2828538 B1 20160629 - MIDDLE WEB CRANKSHAFT HAVING FORGED STRESS RELIEF
Title (en)
MIDDLE WEB CRANKSHAFT HAVING FORGED STRESS RELIEF
Title (de)
MITTELBAHN-KURBELWELLE MIT GESCHMIEDETER SPANNUNGSENTLASTUNG
Title (fr)
VILEBREQUIN À BRAS INTERMÉDIAIRE COMPRENANT UNE DÉTENTE DE CONTRAINTES FORGÉE
Publication
Application
Priority
- US 201213482081 A 20120529
- US 2013038631 W 20130429
Abstract (en)
[origin: US2013319173A1] A forged crankshaft includes a plurality of main journals, a plurality of crank pin journals rotatable in a circular path about axes defined by the main journals, and a plurality of crank webs. At least one crank web of the plurality of crank webs defines a middle crank web which is located between and connects two neighboring crank pin journals of the plurality of crank pin journals. The middle crank web has a stress relief forged therein, which is defined by first and second spaced sidewalls, an inner wall and a base wall. The forged-in stress relief has a predetermined depth, wrap angle, radius, and undercut which together define a shape of the forged-in stress relief. The shape of the forged-in stress relief is controlled to reduce stress in the crankshaft.
IPC 8 full level
F16C 3/08 (2006.01)
CPC (source: EP US)
F16C 3/08 (2013.01 - EP US); F16C 2220/46 (2013.01 - EP US); F16C 2240/30 (2013.01 - EP US); F16C 2240/40 (2013.01 - EP US); Y10T 29/49286 (2015.01 - EP US); Y10T 74/2174 (2015.01 - EP US); Y10T 74/2183 (2015.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2013319173 A1 20131205; US 8826773 B2 20140909; CA 2875115 A1 20131205; CN 104321547 A 20150128; CN 104321547 B 20170510; EP 2828538 A1 20150128; EP 2828538 A4 20150722; EP 2828538 B1 20160629; JP 2015518128 A 20150625; JP 6139672 B2 20170531; MX 2014014546 A 20150220; MX 349784 B 20170811; WO 2013180870 A1 20131205
DOCDB simple family (application)
US 201213482081 A 20120529; CA 2875115 A 20130429; CN 201380023862 A 20130429; EP 13796389 A 20130429; JP 2015515006 A 20130429; MX 2014014546 A 20130429; US 2013038631 W 20130429